Guide is a good option, using artificial intelligence to generate a personalized travel plan in a matter of seconds. It's integrated with Expedia so you can book directly, shows estimated costs by category, and lets you plan with friends and family in real time. The service is free to use and good for travelers who want to plan quickly and collaboratively.
Another option is PlanTripAI, which creates a personalized and customizable trip plan in less than a minute. It offers different travel styles, multiple export formats and the ability to share itineraries. For $10, you get lifetime access to all features, so it's good for people who have to plan a lot of trips.
Wonderplan offers a personalized itinerary manager with AI-based travel advice. You can reorder destinations, add new ones and export plans as PDFs. It's a good central hub for organizing your trips and storing plans you bookmarked, and it's free.
Last, RoutePerfect uses AI trained with GPT technology to create a customized itinerary based on your preferences and budget. It's got booking options for travel arrangements and a trip organizer to store your itinerary. The service also offers a free GPS-based audio guide to help you navigate.